"mone" <mon### [at] alienenterprisesde> wrote in message 
news:web.4ad90cfb1466e24f18ebfdf70@news.povray.org...
> "Chris B" <nom### [at] nomailcom> wrote:
>
>> ..... It transitions to have progressively more transparency and a Blue
>> color for surfaces that are ...
>
> That does sound logical. However I wonder how you have figured out the 
> correct
> values...

Just trial and error I'm afraid, so no secret tricks to share :o)

> ... I think the reason it didn't work at first was because I use to put 
> the camera
> in the -z direction.

Ah yes! I usually do the same, but the skull model I'm doing is facing the 
other way to be consistent with some stuff other people are developing.

I think both your images look very good. I suspect the variation with real 
x-Ray photography can be quite large depending upon what the radiologist is 
trying to highlight.

Regards,
Chris B.

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